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Y(4260) as a J/Sigma KK system

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Y(4260) as a J/Sigma KK system

dc.contributor.author	Martínez Torres, Alberto
dc.contributor.author	Khemchandani, K. P.
dc.contributor.author	Gamermann, D.
dc.contributor.author	Oset Báguena, Eulogio
dc.date.accessioned	2015-09-07T09:50:29Z
dc.date.available	2015-09-07T09:50:29Z
dc.date.issued	2009
dc.identifier.uri	http://hdl.handle.net/10550/46869
dc.description.abstract	A study of the J/ψππ and J/ψKK¯ systems, treating them as coupled channels, has been made by solving the Faddeev equations, with the purpose of investigating the possibility of generation of the JPC=1−−, Y(4260) resonance due to the interaction between these three mesons. In order to do this, we start by solving the Bethe-Salpeter equation for the two pseudoscalar and for the vector-pseudocalar meson systems using the amplitudes obtained from the lowest order chiral Lagrangians as potentials. With the t-matrices generated from these potentials, which contain the poles of the σ, f0(980) and a0(980) resonances for the pseudoscalar-pseudoscalar system and the pole of the X(3872), alongwith other new charmed resonant states, for the vector-pseudoscalar system, we solve the Faddeev equations. As a result, we get a peak around 4150 MeV with a width ∼ 90 MeV when the invariant mass of the two pseudoscalars is close to that of the f0(980).
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2009, vol. 80, num. 9, p. 094012
dc.source	Martínez Torres, Alberto Khemchandani, K. P. Gamermann, D. Oset Báguena, Eulogio 2009 Y(4260) as a J/Sigma KK system Physical Review D 80 9 094012
dc.subject	Física
dc.title	Y(4260) as a J/Sigma KK system
dc.type	journal article	es_ES
dc.date.updated	2015-09-07T09:50:29Z
dc.identifier.doi	http://dx.doi.org/10.1103/PhysRevD.80.094012
dc.identifier.idgrec	079366
dc.rights.accessRights	open access	es_ES